Vibrator.



'MENTE-D MAB, s, 196s..

H. LARSB.

VBRATOR PYLIGATION FILED APR. 4, 19m.

BEST AVAILABLE COPY UNITED aTns HA HOLD LARSEX, Ul"

SPRINGFIELD, Oli l0.

vmnaron.

Specication of Letters Patent.

Patented ihren 3, isos.

Application Sled Apri14. 1907. Serial Ho. 386.12

To all whom it may concern.:

Be it known that l, HAROLD LAiisaN, a

citizen of the United States, residing at4 Springiield, in the county of Clark and State of Ohio, have invented certain new and useful Improvements in Vibrators, of which the following is a specification.

My invention relates to certain new and useful improvements in vibrating machines designed for the treatment of various disl eases, themaizhine being adapted to give vibratory and other action to the muscles and other parts of the body and therebyincrease 'the circulation.

Primarily my invention has for its object to rovide an improved device of a simple andj efective construction, which can be easily and cheaply manufactured, and which will serve its intended purposes to a greater, degree of efficiency' than 1s possible in the devices known to the prior art.

Generically, in invention'resides in producing a device o this charac-terin which the contacting device is in 'substantial alinement with the vibrator and a train of manually oprated gearing by means of which the vi rator is set in motion, the gearing and vibrator being' carried by spindles supported on a frame that is secured to a suitable' handle in such manner that a vertical linedrawn through the axis of the handle wiH pass through the axes of the spindles of Vthe train of gears of the vibrator spindle at right angler thereto and also pass through the center of the contacting device. In other words the arts are so arranged as to be practically a in vertical alinement so hat the motion of the vibratorA will act directl r on thecontacting device.

Wit other objects in view than have been Vs ecied, which will be aiparent to those En l s ed in the art, the ,invention also consista in certain novei details of construction,

= combination and arrangement of dparts, all

of which will be first described in tail and then be speciticall pointed out in the a pended c re erence being had to t ie accompanying drawings, in which:-

Figure 1, is a side elevation of my invention, a part of the frame being broken away. Fig. 2, 1s a front elevation of my invention.

Y 3, is a detail view of a modified form of vi Y A ator. Referring now to the accompanying drawings in which like letters and numerals Vof reference indicate like parts ii. all of the figures a-a represents the frame of the device which is secured at one end to a suitable handle a. and at the opposite end is adapted to receive a contacting device r1.2. which may be attached to the frame in any suitable manner as by a connection rz3 and may consist of anysuitable material, such as solid rubber, for instance.

Mounted in bearings in the frame a is a vibrator spindle l)2 which carries a sleeve b on which the vibrator b is carried, the vibrator being preferably formed integral with the sleeve and being segmental in form, as indicated.

rthe spindle or shaft b2 lies with its axis in the central plane of the device and at right angles to the planes containing the side portions of the frame a-a' and the spindle b2 carries a pinion 1J:l which meshes with a gear c on the spindle c"s which also carries a pinion c's and a suitable spacing collar d, as indicated in the drawings.

c designates a third spindle mounted in suitable bearings in the frame a-a which spindle c7 carries a gear r2 that meshes with t ie pinion e". The spindle c7 also carries a pinion c* and spacing collars d--d=.

The crank shaft which is mounted in bearings iii the frame a-a carries a spacing collar d3 and a sleeve cithat carries a drive gear c as shown, the crank c projecting to one sido of the frame to be easily manipulated by the operator.

It should be understood the vibrator b is fixedly secured to its shaft, and the respccti ve gears of the train of gears are fixe-illy connected to their respective shafts so that the crank c may be turned in either direction to operate the device.

In lieu of the construction of vibrator shown 'in F 'Us 1 a'nd 2, the form shown in Fig. 3 may c usedand in this form the vibrator b may Le connected through alink e to the sleeve b throu h a pivotal connection e', as shown in Fig. 3, t 1e sleeve b being secured to the spindle b2, as before.

In designing the correlativc proportion of the gear train parts, I have so desifned them that a s ed o vibration of the vibrator b is obtainci substantially equal to 4500 revolutions per minute, as I ind that this speed is most advanta cous, although I do not desire to limit myse to such specific proportioning of 1parts.

i am aware that there are certain vibrators now in use and knownin the prior art ic which mvvhmiit'iil orhmitlopvrutvtl invvhiinism is oinployotl, but. in whivh typv usually thv vihriit or vithvr rotatvs in ai phinv :it right iinglvs to thv. 5 longitudinal iixis ol' thv dvvivv or tgiv t-ontavtg togvthvr that thv vontitvting dvvivv., thv train of gvars and thvir supporting frainv tngvthvr willi thv lifmtllv muy bv said to liv substantially in thv samv longitudinal nlinvmvnt, svv

piirtivularly Fig. 2 of thv drawing. This X iilinvinvnt of thv. parts vniiblvs nivfto protlut'v f bvttvr rvsults than hiivv hvvn livrvtoforv oh- I Furthvriiiorv, h v t-onstruvting a dvvicv along thv linvs hvrvinhvftlirv indivatvtlj; nll hvvvl gvnring and long shiifting is vliniit t whivh ihv invvntion nppvrtniiis.

tainvtl.

natvd and thv wvightol' thv vibrator l; is

thus invrvasing its vtlivivnvy.

In thv prnvtivnl :ipplit-:ition of iny,invvntion thv opvrator gi'ilsps thv hund grip or;

mayr hv tiirnvd in a plane pamllvl with thv g hotly and a curtail'. kind ant :tlvgrvv of vibra- "tion may hv obtuinvtl, resulting in a motion living svt up piirallvl to thv body that is in vngiigvinvnt with thv contacting tlv-vive. Now if the devivv hv turnetl one-fourth rvvolution on its longitudinal axis from this position so that the contacting-dvviwl will still vngugv thv body und the longitudinal axis of the tlvvicv still remain parallvl to thv. hotly so that thv t-.rank c may he turned in a plane at right miglvs to the hotly, thvn n. further vibration will hv obtained but this time it will set up a motion at right angles to the body iii vngagvment with the contacting device. By

maintaining thv triiin of gvaring i l now bringing the vontiitzting tlvvicv into enl giigvinvnt with tho hotlyr and holding the dvy vivv so that thv. longitudinal axis thvrvof will nv at right unglvs to thv part of thv. hotly hving contat-tvtl and turning thr :rank c, a coinhination of the two forvgoing modes of vibralntvrmvtliate positions of thv dvvivv with the longitiitlinnl axis thvrvof at various anglvs to thv hotl will rvsult in vorrvspontlingly altvrvtl vi iriitions. so that vibrations of nunivroiis tVpvs und iiitviisitivs van hv ohtiiinvd through thv nsv of in v tlvvit-v, a rvsnlt l thaty is iinpossihlv iii thosv dvvit-vs in which thv parts arvl not iiliiivtl ns livrvin tlvsvrihvd.

Frointhvfoi'vgoingtlvsvriptiontnkvninroiinvvtioii with thv nvvoinpairving tlrmviiigs it is find titlvniitngvs of my iiivvntion \vill hv Naidily i'tntlvrstootl by thosv skillvd in thv nrt to Wlmt l vhiiin iszln ii vibrating dvvivv, a handlv invnihvr, a l U-shiipvd t'rnino scvurvtl tit oliv vnd to snid hmiillv mvmbvr and in longitudinal :ilinvl invnt thvrvwith, n spherical solid vontactin dvvivv, invans tft'innvtting said sphvrivnl soliil t'ontnvting tlvvivv iii'tlii'vvt vor-Utet with thv U-shiipvd fi'iiinv nt thv vntl opp-..-:itv thv hantllv. nivmhvr, snitl vonnvvting inviins lying in thv. longitudinal tixis ol' thv tlvvicv :is a whole, u vibrator fixvtlly inoimtvtl upon its shaft within said friimv, a manually opei'a-tvd drive L shaft also in snid frame, and a train of inteninvshing gvaring fixvtlly niountvtl on their l rvspvctivv shafts and vonnvqting the' drive shtift with the vibrator, whereby when the drivv shaft is turned in vitlivr direction the vibrator is operated, the plane of rotation of tion is obtained.

said vibrator being parallel with the longituing rotating in arallvl planes with said vibrator, substantia ly as shown and described. ln tvstimony` when-of, l have hereunto set my hand this 1st day of April, 1907. -,.'f

HAROLD IARSEN'.

l diiial axis of the tlvvit-e as a whole said eari i l l l l Witnesses: l i l Cmti I. WELCH, t

CLARA GALLAGHEB, 

